Hey Richard,
Sorry for the delay in response,
I purchased them though a company here in Australia called Hemi Performance. They are from a 318 truck motor apparently, but the 273/318 heads are exactly the same so will bolt up without issue. If you zoom in on the photo I posted you can see the...
@toolmanmike
Great thread!!!
Thank you for bringing my attention to your build, it’s / your very inspirational!! A lot of great information and tips that will come in handy!!
Cheers Mate,
Luke
Thanks for the information guys.
Dummy assembly is taking place either next week or the week after. Waiting on my NOS closed chamber heads to arrive and for my components to be balanced then the. Will let you know what final numbers are.
Looking forward to it, another early 273 saved from the...
I’ve had 8 heads crack tested (4 x closed chamber & 4 x open chamber) and they’ve all come back cracked, either through the combustion chamber or around the two end bolt holes closest to the exhaust manifolds. I’ve just payed for a NOS set of closed chamber heads, which is what I was wanting...
Hi mate,
I realise this thread is old but I’ve been trying to research the 273 Commando pistons, especially the RC pistons you mention here. I recently bought a set of .030 Rebuilders Choice 4bbl Commando pistons and am needing the dome volume. I’ve been reading anywhere from 15cc’s to what you...
My mechanic as pretty switched on so can work it out. RC said they made them from factory 273 Commando pistons so was curious as to what the factory specs were. I did read on a thread somewhere that a guy did cc the pistons I have and they came in at 11.5.
Yep, closed chamber heads. It’s a...
Thanks for the response guys, it’s appreciated. Does anyone know what cc’s the factory Commando pistons were? There is so much literature on the net in regards to practically everything else bar that.